Op julius stoor



(No Model?) A. L. QV ARNSTRUM. GORKSCRBW Patented Mar. 12, 1895.

W .M. l 7 M,

To all whom it may concern.-

Be it known that ANDERS LUDVIG QVARN- s'rRoM, a subject of the King ofSweden and Norway, residing at Sundyberg, Sweden, have invented certainnew and useful Improvements in Corkscrews, of which the following is afull, clear, and exact description.

This invention has relation to corkscrews, and especially that classthereof wherein a spindle is caused to screw into the cork by a downwardpressure upon the handle.

One of the objects of this invention is to provide such a corkscrew inwhich the downward pressure upon the handle transmitted to the screwspindle will be greatest upon the latter at the beginning oftheoperation of screwing the device into the cork, so that said spindlewill be caused to invariably engage in and with the'cork, after whichthe pressure exerted uponthe spindle ina longitudinal direction willgradually decrease during the screwing in of the same while the turningforce at the same time increases.

A further object of the invention is to provide a locking device wherebythe screw spindle will be prevented from rotating in the oppositedirection when the cork is being pulled out of the bottle.

A still further object of the invention is to provide a corkscrew whichmay when telescoped together be as short as possible and thus be enabledto be carried in a very small compass.

WVith the above and other objects in view, all as will presently appear,the invention consists in the novel construction, arrangement andcombination of parts as hereinafter fully described, illustrated in thedrawings and pointed out in the appended claims.

In the accompanying drawings:Figure 1 is a sectional elevation of myimproved corkscrew in its simple form. Fig. 2 is a detail View of aportion of the sleeve or tube B. Fig. 3 is a sectional elevation showingthe corkscrew extended, the same here embodying a slight modification;Fig. 4., an elevation showing said corkscrew telescoped together. Fig. 5is an enlarged detail view of the lower portion of the screw spindle.

To the handle A is secured a tube or sleeve A in which is arranged atube or sleeve B CDERS LUDVIGr QVARNSTROM, OF SUN DYBERG, ASSIGNOR TOTHE FIRM OF JULIUS STOOR, OF STOCKHOLM, SWEDEN.

'CORKSCREW.

SPECIFICATION forming part of Letters Patent No. 535,726, dated March12, 18195. Application filed July 8,1893. Serial No. 479,529. (Nomodel.)

provided with a worm groove 0 with which engages the pin E secured tothe screw spindle D. The worm groove O has, as shown, an'increasingpitch upward in order that the screw spindle drawn out and placedagainst the cork may, when the handle is pressed down be subjected toend pressure which will be greatest atthe beginning of the operation ofscrewing into the cork, and which pressure will then gradually decreasewhile at the same time the turning force exerted upon the spindle willincrease. At its top the worm groove 0 terminates in a recess Fintowhich the pin E can be made to engage by turning the handle slightlyafter the screw spindle has been completely screwed into the cork. Thecork can then be pulled out in the usual manner by pulling upon thehandle.

The recess F can be formed either so that the worm groove turns in theopposite direction, as shown by Fig. 1, or formed so as to run in anunchanged direction perpendicular to the axis, as in Fig. 2. The saidrecess can be more or less inclined as indicated by the dotted lines insaid Fig. 2.

The provision and arrangements of the re cess as described, serves toprevent the screw spindle turningin an opposite direction when the corkis being pulled out, the pin E invariably engaging in the said recess tothereby form a lock for said spindle.

In order that the corkscrew when telescoped together may be short andcompact, there may be a second sleeve provided which can enter thesleeve secured to the handle. This is illustrated by Figs. 3 and i ofthe drawings. Into the sleeve A secured to the handle A there isintroduced the sleeve G which can rotate in the sleeve A in the samemanner as the screw spindle in Fig. 1. In the sleeve G the spindle Ditself is adapted to rotate. The sleeve G is provided with a pin Eongaging in the worm groove D of the spindle and the sleeve A isprovided with a pin E engaging in the groove D of sleeve G. The wormgrooves can be arranged as described above, that is with varying pitch,and the locking device between the spindle and the sleeve surrounding italso provided. The spindle may be provided with a special handle K.

In Fig. 5, the lower end of the screw spindle is represented on a largerscale. The two lines a-b and d@ being continuations of the upper andlower generatrix of the worm groove, show that the first mentioned or upper side has a greater inclination to the axis than the lower side, theangle abc being greater than the angle eclf. The inclination of thesides may vary provided the relation between the inclination of the oneand that of the other he thatjust mentioned. The angle abc can forinstance be almost or entirely a right angle, and the angle ecZf greateror smaller than that shown by the drawings.

By the arrangement of the screw worm shown in Fig. 5 the cork screw willbe easy to screw in, as the under side of the screw makes a very acuteangle to the axis of the latter. WVhen pulling out the cork the reversewill be the case, as then the upper side of the screw worm ottersresistance said side making almost a right angle to the line along whichthe pulling force acts. Oonsequentlythepitch canbe greater thanotherwise whereby the cork screw will more quickly screw in the cork.

What I claim, and desire to secure by Letters Patent, is

1. In acork screw of the class described, the combination with a screwspindle, and a sleeve surrounding the same of a worm groove and pinconnection between said parts adapted to cause the rotation of thespindle when the sleeve is pressed downwardly, the pitch of said grooveincreasing toward the upper end of the latter, as and for the purposespecified.

2. In a corkscrew of the class described, the combination with a screwspindle, and a sleeve surrounding the same, of a worm groove and pinconnection between said parts adapted to cause the rotation of thespindle when the sleeve is pressed downwardly, the pitch of the saidgroove increasing toward the upper end of the latter, an outermostsleeve surrounding the first mentioned sleeve, a pin and grooveconnection between said sleeves and a handle to which the said outermostsleeve is secured, as specified. I

3. In acorkscrew of the class described, the combination with ascre'wspindle, and a sleeve surrounding the same, of a worm groove and pinconnection between said parts adapted to cause the rotation of thespindle when the sleeve is pressed downwardly, the pitch of the saidgroove increasing toward the upper end of the latter, and a handle towhich the said sleeve is secured, and means for looking the spindleagainst backward rotation after the same has been screwed into a cork,consisting in an angularly arranged recess in which the upper end of thesaid groove terminates and-a pin carried by the spindle and adapted toengage within said recess when the spindle has been screwed into a cork,as specified.

4. In a corkscrew of the class described, the combination with a screwspindle, and a sleeve surrounding the same, of a worm groove and pinconnection between said parts adapted to cause the rotation of thespindle when the sleeve is pressed downwardly, the pitch of the saidgroove increasing toward the upper end of the latter, anoutermost'sleeve surrounding the first mentioned sleeve, a pin andgroove connection between said sleeves, and a handle to which the saidoutermost sleeve is secured and means for locking the spindle againstbackward rotation after the same has been screwed intoa cork consistingin an angularly arranged recess in which the upperend of the firstmentioned groove terminates and a pin carried by the spindle and adaptedto engage within said recess when the spindle has been screwed into acork, as specified.

In witness whereof I have hereunto signed my name in the presence of twosubscribing witnesses.

ANDERS LUDVIG QVARNSTRUM.

Witnesses:

ERNST SvANcRIsT, E. H. BRUHN.

Patent No. 535,726, Ludvig Qvarnstriim, of

It is hereby certified that the name of the assignee in Letters grantedMarch 12, 1895, upon the application of Anders Sundyberg, Sweden, for animprovement'in Corkscrews, was erroneously written and printed the firmof J nlius Stoor, Whereas said name should have been Written and thatthe said Letters Patent should be read with this correction therein thatthe same may co nform to the record of the casein the Patent, Office.

Signed, countersigned, and sealed this 30th day of April, A. D. 1895.

J N O. i M. REYNOLDS, Assistant Secretary of the Interior.

and printed the firm of Julius Slb''r;

Oountersigned 5 J OHN: S. SEYMOUR,

Commissioner of Patents.

